I'm searching for a tv show I was viewing when I was a kid and sorry, that's probably a TV show well known for 2000's american kids but unfortunately, I'm french. I was receiving american broadcast without knowing what it was and mostly It was Nickeoldeon stuff. So, this TV show was for teenagers because the action took place in a highschool. It was maybe a sitcom because the camera is very far away from the characters to catch a lot of actors in the same shot. The quality was definitely 2000 ish. The story was revolving around teenagers who experiments some potions and stuff like Weird Science in a laboratory in the attic of the school. I remember one episode or two (maybe it's in the same) where a character creates a potion who can turn a man to woman, but only the boobs part. Coincidentally, the bully who drinks the potion go to the beach, and grow a pair of boobs and then, got stuck hidding in the water. Very stupid story if you asked me. Then, I remember an other part of a story where a giant Koala destroyed the surroundings of the school because of an experiment. Maybe it's in the same episode, or maybe it's not a sitcom and just a movie... But I don't know. I remember clearly those parts (because boobs and bad cgi Koala) but not sure about the media. If you got any clue of what it is, please share it to me ! Thanks for the reading !